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The GPSMAP� 178C Sounder is a new-generation fully integrated chartplotter and powerful sonar, offering the same brilliant sunlight-readable color LCD, powerful features, and simple interface as the GPSMAP 172C�all in a compact, value-priced console that leaves fish nowhere to hide.
It comes standard with a built-in worldwide marine basemap and accepts MapSource� BlueChart� offshore marine cartography�featuring detailed depth contours, inter-tidal zones, wrecks, navaids, and many other points of interest. For small-water anglers, the GPSMAP 178C Sounder is compatible with MapSource Recreational Lakes with Fishing Hot Spots�featuring fishing areas, boat ramps, marinas, and hazards for hundreds of popular U.S. and Canadian lakes. Pre-programmed data cards can be easily inserted into the slot on the front of the unit.
- 320 x 320-pixel, 256-color CSTN screen with adjustable CCFL backlight
- 3.2" H x 3.2" W (4.5" diagonal) viewing area
- 4.9�H x 6.3�W x 2.8�D unit dimensions
- State-of-the-art 200 MHz processor makes data acquisition, panning, and zooming virtually instantaneous
- Choose either a dual-frequency 50/200 kHz transducer for offshore boating or a single-frequency 200 kHz transducer for inland lakes and bays
- See-Thru� technology (which separates fish from thermoclines and structure) and Depth Control Gain (DCG�) for detailed images of structure and bottom densities
- New digital display technology offers an easy-to-read, semi-transparent digital readout that allows users to see sonar images "behind" the data
- User waypoints are automatically tagged with the date and time of creation, as well as water temperature and depth�vital information for serious anglers
- 10,000 active track points and 700 saved track points; database information can be stored on removable data cards and transferred to a PC or another unit
- Sends, receives, and displays positioning data with DSC equipped VHF radios
- TracBack� mode helps guide you back to points along a route
- Tracklines can be color-coded for trolling or cruising applications
- 400-watt (RMS) 3200-watt (PTP) output with single-frequency transducer
- Adjustable range, gain, zoom, and bottom lock
- Temperature log maintains a graphical record of temperature data
- Shallow-water, deep-water, fish-by-size, timer, low-battery-voltage, anchor-drag, arrival, off-course, proximity-waypoint, and clock alarms
- Water temperature and fish ID with depth alarms
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